Despite offering solutions for various markets, the PVC industry has historically been dominant in the pipe industry. PVC pipe has been preferred not only for its formulation capabilities but also for its affordability compared to other polymer substitutes. This same logic applies to other types of rigid PVC profiles such as gutters, roofing, tiles, window profiles, etc. Furthermore, while the additives used to formulate these rigid profiles are not identical, they share certain similarities in areas such as lubricants and thermal stabilizers. However, the evolution of the PVC industry and companies' commitment to more sustainable solutions and reduced risks for consumers have driven changes in the additives currently used. The best example is the replacement of the methyl tin thermal stabilizer and its lubricants with a calcium zinc-based lubrication package, which not only promises safer operating conditions for personnel but also offers a more cost-effective alternative in the face of the constantly rising cost of traditional raw materials. Additionally, dosing is easier due to the reduced number of ingredients in the mixing process, and it also generates less risk and fewer strong odors in the production area. However, depending on the size of the profile being produced, additional lubricants may be required to reduce yellowing and achieve completely white products. Finally, these solutions are adaptable to both PVC and CPVC.
